1. IES Auringis. Jaén.
José Cayetano Bautista Expósito
4º ESO. Physics and Chemistry. Unit 8 (I).
Go through the links and answer the following questions. Write the answers in your
notebook. Ask the teachers if needed. Use other related web sites if you like.
1. What is the value of Avogadro constant?: Avogadro constant
2. What is a mole? The Mole.
3. What is the molecular mass? How is it computed? Molecular mass
4. What is the molar mass? Molar mass
5. Find the molar mass of sugar(C12
H22
O11
) and compare it with the molar mass of water
(H2
O)
6. What does the “law of conservation of mass” state? Balancing equations
7. What is stoichiometry? Stoichiometry
8. Look for the formula of the ideal gas law and try to explain what happens with volume
if Temperature is 0 ºC, pressure is 1 atm and the number of moles is 1?
The ideal gas law